诸宫调是一种以唱为主的说唱形式,元杂剧剧本四大套曲的音乐结构很有可能与歌唱有四节的原理相通。在北曲曲牌联套体的音乐结构中,音律有固定的程式;元杂剧剧本以四折为结构也受制于“一人主唱”演员声带的承受限度;元杂剧一个宫调下的套曲,所用韵在同一韵部,且一韵到底,非常严格,因此元杂剧剧本长度必须受到制约。南戏曲牌联套自由组合的随意性,使得它可以根据剧情的需要安排和调节音乐旋律、设置唱段;南戏“多角均唱”的演唱体制,使其在歌唱上不存在演员声带疲劳问题;宋元南戏填词,并没有严格的韵律规则,作者任意为之,一套曲牌中时有换韵,韵辙则常常由一韵旁入它韵,这样在选择押韵时就宽泛得多,因此在篇幅上不受限制。 Zhu Gong tune is a kind of singing-based form of rap, Yuan opera script four sets of music structure is likely to be connected with the principle of singing has four sections. In the music composition of the Beijerqu Quandy, the temperament has a fixed program; Yuan Opera script with a four-fold structure is also subject to the “” lead singer “percussion band; Rhyme in the same rhyme department, and a rhyme in the end, very strict, so Yuan drama scripts must be constrained. South opera song card set free combination of randomness, making it according to the needs of the story arrange and adjust the music melody, set singing; South play ”polygamous singing " singing system, so that there is no singer vocal fatigue in the song ; Song and Yuan South play lyrics, and there is no strict rules of rhythm, the author of any, a set of songs in the time when there is a change of rhyme, rhyme is often rhymed into its next rhyme, so rhymed in the choice of a lot more broadly, therefore Unlimited in length.